Phys. Rev. Lett. 99, 236808 (2007) [4 pages]Imaginary-Time Formulation of Steady-State Nonequilibrium: Application to Strongly Correlated TransportReceived 21 March 2007; published 7 December 2007 We extend the imaginary-time formulation of the equilibrium quantum many-body theory to steady-state nonequilibrium with an application to strongly correlated transport. By introducing the Matsubara voltage, we maintain the finite chemical potential shifts in the Fermi-Dirac function, in agreement with the Keldysh formulation. The formulation is applied to strongly correlated transport in the Kondo regime using the quantum Monte Carlo method. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.236808
DOI:
10.1103/PhysRevLett.99.236808
PACS:
72.10.Di, 72.10.Bg, 73.63.Kv
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